Is this Ella remix good?

No, OP.
The Verve remixes are hit and miss. The "Is you is..." Mix of Dinah Washington is great. Ella's "Wait 'til You See Him" is aces too.

I just pulled up my iTunes (what a bloatd, evil monster of a program) and found a few more you might like.
Carmen McRae's "How long has this been going on" is flawless, as is Nina doing "Feeling Good"
There are some great gems, but the one at the OP is foul.
JMOHO

OP
You MUST download their remixed version of Dinah Washington's "is You Is or Is You Ain't My Baby"!
It played on my random tunes today, and I forgot how awesome it is.